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USGS Says California Needs Close Monitoring Of 8 Active Volcanoes

California could be even closer to a major natural disaster than ever before. With eight active volcanoes and a high state population, the United States Geological Survey says that the Golden State is in desperate need of very close monitoring.

“I call them the watch-list volcanoes,” said Margaret Mangan, Scientist-in-Charge at the California Volcano Observatory. Scientists know from geophysical and geochemical research that these volcanoes have molten rock and magma, “in their roots,” and the world’s top volcanologists aren’t taking any chances anymore. They are heading to Portland, Oregon on August 14 for the first international volcanology assembly held in the U.S. since 1989. The many famous, prominent, and dangerous volcanoes of the West Coast will be the subject of field trips and much discussion during the assembly.

The volcanoes which will get the most discussion are shown in the image below.

USGS caption: Volcanoes of very high to low threat are scattered throughout California, from the Oregon border (north) to Mexico (south). Other older volcanoes in California are of less concern. California’s volcano watch list is subject to change as new data on past eruptive activity are collected, as volcanic unrest changes, and as populations in threatened areas grow or decline.